$\"\"$

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(a)

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The complex number is $\"\"$ .

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Write the complex number in trigonometric form.

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The absolute value of $\"\"$ is

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$\"\"$

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and the angle $\"\"$ is

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$\"\"$

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The trigonometric form of $\"\"$ is $\"\"$ .

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The trigonometric form of $\"\"$ is $\"\"$ .

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$\"\"$

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The absolute value of $\"\"$ is

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$\"\"$

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and the angle $\"\"$ is

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$\"\"$

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The trigonometric form of $\"\"$ is $\"\"$ .

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The trigonometric form of complex number $\"\"$ is

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$\"\"$ .

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$\"\"$

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(b)

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The trigonometric form of complex number $\"\"$ is $\"\"$ .

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Now perform the indicated operation by using the trigonometric form.

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$\"\"$

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Use the Quotient rule of two complex numbers:

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Let $\"\"$ and $\"\"$ .

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$\"\"$

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$\"\"$

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$\"\"$ .

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$\"\"$

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(c) The complex number is $\"\"$ .

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Convert the complex number $\"\"$ into standard form.

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Multiply and divide with the conjugate of $\"\"$ .

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$\"\"$

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Perform the indicated operation.

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$\"\"$

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$\"\"$ .

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$\"\"$

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(a) $\"\"$ .

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(b) $\"\"$ .

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(c) $\"\"$ .